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salt/tornado-fix-an-open-redirect-in-staticfilehandler-cv.patch
2024-07-09 08:30:09 +00:00

36 lines
1.5 KiB
Diff

From 78f5a76315891168d24e923d2b08211baefefb4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pablo=20Su=C3=A1rez=20Hern=C3=A1ndez?=
<psuarezhernandez@suse.com>
Date: Thu, 22 Jun 2023 16:36:20 +0100
Subject: [PATCH] tornado: Fix an open redirect in StaticFileHandler
(CVE-2023-28370, bsc#1211741) (#583)
---
salt/ext/tornado/web.py | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/salt/ext/tornado/web.py b/salt/ext/tornado/web.py
index 60bde695d3..97fadcf87d 100644
--- a/salt/ext/tornado/web.py
+++ b/salt/ext/tornado/web.py
@@ -2544,6 +2544,15 @@ class StaticFileHandler(RequestHandler):
# but there is some prefix to the path that was already
# trimmed by the routing
if not self.request.path.endswith("/"):
+ if self.request.path.startswith("//"):
+ # A redirect with two initial slashes is a "protocol-relative" URL.
+ # This means the next path segment is treated as a hostname instead
+ # of a part of the path, making this effectively an open redirect.
+ # Reject paths starting with two slashes to prevent this.
+ # This is only reachable under certain configurations.
+ raise HTTPError(
+ 403, "cannot redirect path with two initial slashes"
+ )
self.redirect(self.request.path + "/", permanent=True)
return
absolute_path = os.path.join(absolute_path, self.default_filename)
--
2.41.0